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Expression data from mouse muscle

ABSTRACT: The knock-out of calpain 3 (C3KO) is a murine model for calpainopathies wich shows a mild dystrophic phenotype with signs of muscle degeneration. Adult (A) mice show a more severe phenotype than young (Y) mice which only present inflammatory infiltrates in most severely affected muscles, such as the soleus. Other muscles (e.g. quadriceps) are much less affected. We used microarray technology to compare gene expression profiles of young and adult muscles in wild-type (wt) and C3KO mice, in two types of muscle: soleus (affected) and quadriceps (much less affected). 11 wt (7 adult and 4 young) and 11 C3KO (7 adult and 4 young) mice were used in this study for RNA extraction and hybridization on Affymetrix microarrays. The soleus and the quadriceps muscles were obtained from each mouse. All mice were males.

ORGANISM(S): Mus musculus

SUBMITTER: Amets Saenz

PROVIDER: E-GEOD-33931 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from mouse muscle

Project description:The knock-out of calpain 3 (C3KO) is a murine model for calpainopathies wich shows a mild dystrophic phenotype with signs of muscle degeneration. Adult (A) mice show a more severe phenotype than young (Y) mice which only present inflammatory infiltrates in most severely affected muscles, such as the soleus. Other muscles (e.g. quadriceps) are much less affected. We used microarray technology to compare gene expression profiles of young and adult muscles in wild-type (wt) and C3KO mice, in two types of muscle: soleus (affected) and quadriceps (much less affected).

2012-07-05 | GSE33931 | GEO

Effect of muscular dystrophy caused by PTRF deletion on the transcriptome of skeletal muscles

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MiRNA expression profiling of skeletal muscles in aged rodents

Project description:Skeletal muscle atrophy is one of the critical issues which elderly people face. The precise mechanism underlying muscle atrophy during aging is not fully understood. In order to identify miRNA whose expression is changed in age-associated muscle atrophy, we performed miRNA expression profiling of skeletal muscles in young and aged rats. Microarray analysis revealed differential miRNA expression in EDL and soleus muscles of aged rats compared with those of young rats. We next investigated whether the age-associated changes of miRNA expression observed in rats were recapitulated in mice and found that the expression level of miR-206 in EDL muscle and that of miR-196a in EDL and soleus muscles were respectively higher and lower in aged rodents than in young rodents. In mouse C2C12 myoblasts and myotubes, introduction of miR-196a decreased the protein level of Forkhead-box transcription factor Foxo1, a known target of miR-196a, indicating that miR-196a may regulate Foxo1 expression also in skeletal muscles. Furthermore, miR-196a overexpression exacerbated cell death caused by an exposure to hydrogen peroxide. Lastly, we demonstrated that expression of Foxo1 was elevated in EDL and soleus muscles of aged mice compared with those of young mice. These results suggest that miRNAs are involved in skeletal muscle atrophy during aging and that decreased miR-196a expression may protect skeletal muscle cells from oxidative stress in part through induction of Foxo1.

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Differences in gene expression between fast and slow muscle or between normal and denervated slow muscles

Project description:Fast and slow skeletal muscles show different characteristics and phenotypes. This data obtained from microarray includes the comparison of normal fast plantaris and slow soleus muscles of adult rats. Characters of slow muscle are strongly dependent on the level of muscular activity. Denervation silences the muscular activity. Therefore, we determined the effects of denervation on gene expression in slow soleus muscle of adult rats.

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Transcriptomic analysis of mdx mouse muscles reveals a signature of early human Duchenne muscular dystrophy

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Proteomic profiling of muscular adaptations to short-term concentric vs. eccentric exercise training in humans

Project description:The study used liquid-chromatography tandem mass spectrometry (LC-MS/MS) combined with bioinformatics analysis to analyze muscle biopsies from the vastus lateralis muscles obtained from two groups of young males after four weeks of either concentric or eccentric resistance training of the quadriceps femoris muscles.

2023-12-17 | PXD047890 |

Extraocular, masticatory, and hindlimb muscles, comparison of putative muscle allotypes (Porter lab)

Project description:Extraocular Muscle is Defined by a Fundamentally Distinct Gene Expression Profile. Adult mouse extraocular, masticatory, and hindlimb (gastrocnemius/soleus) muscles of adult mice were compared using Affymetrix microarrays. Data form part of publication: Proceedings of the National Academy of Sciences USA 98:12062-12067, 2001. Keywords: parallel sample

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Transcription profiling of mouse extraocular, masticatory, and hindlimb muscles to compare putative muscle allotypes

2007-10-06 | E-GEOD-1062 | biostudies-arrayexpress

Identification of cold-shock protein RBM3 as a possible regulator of skeletal muscle size

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